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Sound The human impression of the strength of a sound depends, among other things, on the frequency of the sound. The loudness level of a sound, in phons, is the decibel level of an equally loud 1000 Hz tone. The sone is another unit of comparative loudness. The table below lists some equivalent values of phons and sones. Find an equation that gives the phon level of a sound in terms of the number of sones.
Initially, the engine weight acts in the (-z) direction through point Q which has coordinates (24,0,1.25); find the maximum tensile, compressive, and shear stresses at point A.
a refrigeration cycle uses refrigerant 134-a as the working fluid. the refrigerant enters the expansion valve as a
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a cylindrical pipe with inner and outer radii of 1.0 m and 1.1 m respectively is comprised of a material such that the
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